Ch. 1: Basic Concepts Flashcards
2-D Model of the Earth
Map
Relationship to the feature’s size rather than actual size
Scale
Shows a small portion of Earth with lots of detail
Large-scale map
Shows the entire globe with little detail
Small-scale map
Transferring a globe to a flat map
Projection
Advantages:
- distorted very little
- the map is rectangular
- distance stays the same
Disadvantages:
- size is distorted near the poles
Mercator Projection
Advantages:
- useful for displaying info.
Disadvantages:
- areas are smaller than they actually are
- allocate space to the ocean
Robinson Projection
0 degrees latitude
Equator
0 degrees longitude
Prime Meridian
180 degrees longitude
International Date Line
Collect data by orbiting the Earth and collecting images
Remote sensing
Used for:
- navigation
- precise location
- contribute to the production of maps
Global Positioning System (GPS)
to store “layers” of data
GIS - Geographic Information System
Overlaying of layers from multiple sources
Mashup
Name given to a place on Earth
toponym
physical characteristics of a place (e.g. climate, water sources, elevation..)
Site
Locations of a place relative to other places
- familiar places may be used to describe unfamiliar places
Situation